COLUMBIA, S.C. (AP) — Federal regulators say they've found there was a "substantial potential" for an accident that could have injured workers at the Westinghouse nuclear fuel plant near Columbia. Media outlets report the preliminary results of an investigation into a uranium built up at the plant were discussed Tuesday night. Westinghouse says it's working to resolve problems at the plant. The Nuclear Regulatory Commission says Westinghouse was unable to keep uranium from accumulating in plant equipment. The NRC says there was no accident at the plant and people in Richland County were in no danger.Read more on NewsOK.com